/Engine/Source/Runtime/GeometryCore/Public/Operations/MeshSelfUnion.h
MeshSelfUnion  perform a "Mesh Boolean" style union of a mesh on itself, resolving any self intersections and welding the new boundaries as needed
class FMeshSelfUnion
TSet< int32 >
AllNewEdges
All edges created by mesh boolean algorithm. Only populated if bTrackAllNewEdges = true
bool
bCollapseDegenerateEdgesOnCut
InputsWhether to do additional processing to try to remove degenerate edges
bool
bPreserveOverlayUVs
Prevent simplification from distorting overlay UVs
bool
bPreserveTriangleGroups
Prevent simplification from distorting triangle groups
bool
bPreserveVertexNormals
Prevent simplification from distorting vertex normals
bool
bPreserveVertexUVs
Prevent simplification from distorting vertex UVs
bool
bSimplifyAlongNewEdges
Control whether we attempt to auto-simplify the small planar triangles that the boolean operation tends to generate
bool
bTrackAllNewEdges
Control whether new edges should be tracked
bool
bTrimFlaps
Whether to remove visible "open" geometry
bool
bWeldSharedEdges
Weld newly-created cut edges where the mesh is unioned with itself.
TArray< int >
CreatedBoundaryEdges
OutputBoundary edges created by the mesh boolean algorithm failing to cleanly weld (doesn't include boundaries that already existed in source mesh)
double
DegenerateEdgeTolFactor
Tolerance factor (multiplied by SnapTolerance) for removing short edges created by the cutting process; should be no more than 2
FDynamicMesh3&...
Mesh
The input mesh, to be modified.
float
NormalDistortTolerance
When preserving normals, sets maximum allowed change in normals from collapsing an edge, measured at the removed vertex in degrees
double
NormalOffset
Amount we nudge samples off the surface when evaluating winding number, to avoid numerical issues
FProgressCancel...
Progress
Set this to be able to cancel running operation
double
SimplificationAngleTolerance
Simplification-specific settings (only relevant if bSimplifyAlongNewEdges==true):Degrees of deviation from coplanar that we will still simplify
double
SnapTolerance
Tolerance distance for considering a point to be on a vertex or edge, especially during mesh-mesh cutting
double
TryToImproveTriQualityThreshold
If triangle quality (aspect ratio) is worse than this threshold, only simplify in ways that improve quality.
float
UVDistortTolerance
When preserving UVs, sets maximum allowed change in UV coordinates from collapsing an edge, measured at the removed vertex
double
WindingThreshold
Threshold to determine whether triangle in one mesh is inside or outside of the other